sin150°=sin(180°-30°)=sin30°=1/2
cos150°=cos(180°-30)=-cos30°=-(√3)/2
tan150°=tan(180°-30)=-tan30°=-(√3)/3
cot150°=cot(180°-30)=-cot30°=-√3
扩展资料
π-α与α的值之间的关系
sin(π－α)=sinα
cos(π－α)=－cosα
tan(π－α)=－tanα
cot(π－α)=－cotα
2π-α与α的三角函之间的关系
sin(2π－α)=－sinα
cos(2π－α)=cosα
tan(2π－α)=－tanα
cot(2π－α)=－cotα
常见的三角函数值包括正弦函数值、函数值和正切函数值。下面是小编整理的三角函数值对照表sin150，供大家参考。
常用三角函数值对照表
sin0=sin0°=0
cos0=cos0°=1
tan0=tan0°=0sin15=0.650；
sin15°=0.259
cos15=-0.759；cos15°=0.966
tan15=-0.855；tan15°=0.268
sin30°=1/2
cos30°=0.866；
tan30°=0.577；
sin45°=0.707；
cos45°=0.707
tan45=1.620；tan45°=1
sin60=-0.305；sin60°=0.866
cos60=-0.952；cos60°=1/2
tan60=0.320；tan60°=1.732
sin75=-0.388；sin75°=0.966
cos75=0.922；cos75°=0.259
tan75=-0.421；tan75°=sin75°/cos75°=3.732
sin90=0.894；sin90°=cos0°=1
cos90=-0.448；cos90°=sin0°=0
tan90=-1.995；tan90°不存在
sin105=-0.971；sin105°=cos15°
cos105=-0.241；cos105°=-sin15°
tan105=4.028；tan105°=-cot15°
sin120=0.581；sin120°=cos30°
cos120=0.814；cos120°=-sin30°
tan120=0.713；tan120°=-tan60°
sin135=0.088；sin135°=sin45°
cos135=-0.996；cos135°=-cos45°
tan135=-0.0887；tan135°=-tan45°
sin150=-0.7149；sin150°=sin30°
cos150=-0.699；cos150°=-cos30°
tan150=-1.022；tan150°=-tan30°
sin165=0.998；sin165°=sin15°
cos165=-0.066；cos165°=-cos15°
tan165=-15.041；tan165°=-tan15°
sin180=-0.801；sin180°=sin0°=0
cos180=-0.598；cos180°=-cos0°=-1
tan180=1.339；tan180°=0
sin195=0.219；sin195°=-sin15°
cos195=0.976；cos195°=-cos15°
tan195=0.225；tan195°=tan15°
sin360=0.959；sin360°=sin0°=0
cos360=-0.284；cos360°=cos0°=1
tan360=-3.380；tan360°=tan0°=0
特殊角三角函数值
sin1=0.01745240643728351
sin2=0.03489949670250097
sin3=0.05233595624294383
sin4=0.0697564737441253
sin5=0.08715574274765816
sin6=0.10452846326765346
sin7=0.12186934340514747
sin8=0.13917310096006544
sin9=0.15643446504023087
sin10=0.17364817766693033
sin11=0.1908089953765448
sin12=0.20791169081775931
sin13=0.22495105434386497
sin14=0.24192189559966773
sin15=0.25881904510252074
sin16=0.27563735581699916
sin17=0.2923717047227367
sin18=0.3090169943749474
sin19=0.3255681544571567
sin20=0.3420201433256687
sin21=0.35836794954530027
sin22=0.374606593415912
sin23=0.3907311284892737
sin24=0.40673664307580015
sin25=0.42261826174069944
sin26=0.4383711467890774
sin27=0.45399049973954675
sin28=0.4694715627858908
sin29=0.48480962024633706
sin30=0.49999999999999994
cos1=0.9998476951563913
cos2=0.9993908270190958
cos3=0.9986295347545738
cos4=0.9975640502598242
cos5=0.9961946980917455
cos6=0.9945218953682733
cos7=0.992546151641322
cos8=0.9902680687415704
cos9=0.9876883405951378
cos10=0.984807753012208
cos11=0.981627183447664
cos12=0.9781476007338057
cos13=0.9743700647852352
cos14=0.9702957262759965
cos15=0.9659258262890683
cos16=0.9612616959383189
cos17=0.9563047559630355
cos18=0.9510565162951535
cos19=0.9455185755993168
cos20=0.9396926207859084
cos21=0.9335804264972017
cos22=0.9271838545667874
cos23=0.9205048534524404
cos24=0.9135454576426009
cos25=0.9063077870366499
cos26=0.898794046299167
cos27=0.8910065241883679
cos28=0.882947592858927
cos29=0.8746197071393957
cos30=0.8660254037844387
tan1=0.017455064928217585
tan2=0.03492076949174773
tan3=0.052407779283041196
tan4=0.06992681194351041
tan5=0.08748866352592401
tan6=0.10510423526567646
tan7=0.1227845609029046
tan8=0.14054083470239145
tan9=0.15838444032453627
tan10=0.17632698070846497
tan11=0.19438030913771848
tan12=0.2125565616700221
tan13=0.2308681911255631
tan14=0.24932800284318068
tan15=0.2679491924311227
tan16=0.2867453857588079
tan17=0.30573068145866033
tan18=0.3249196962329063
tan19=0.34432761328966527
tan20=0.36397023426620234
tan21=0.3838640350354158
tan22=0.4040262258351568
tan23=0.4244748162096047
tan24=0.4452286853085361
tan25=0.4663076581549986
tan26=0.4877325885658614
tan27=0.5095254494944288
tan28=0.5317094316614788
tan29=0.554309051452769
tan30=0.5773502691896257